topic Re: powerpc core documentation in MPC5xxx

powerpc core documentation

jschloss — Mon, 16 Oct 2017 21:16:04 GMT

Hi,

I was looking for documentation about the PowerPC cores in the MPC5777M (e200z710n3 / e200z425Bn3) to set up eg the internal timebase register and decrement counter, check other SFRs, ...

I found these two

e200z446n3

https://www.nxp.com/docs/en/reference-manual/e200z4RM.pdf

e200z760n3

https://www.nxp.com/docs/en/reference-manual/e200z760RM.pdf

but not ones exactly for the e200z710n3 or e200z425Bn3 - are the z446 and z760 close enough to be useful? Is there more specific documents for the other cores?

Thanks,

Jacob

Re: powerpc core documentation

davidtosenovjan — Tue, 17 Oct 2017 06:13:29 GMT

Unfortunately, core reference manuals only exist for core variants used on MPC55xx/56xx devices.

Core variants used with MPC57xx devices are only described in MPC57xx device reference manuals. For instance, MPC5777MRM, specifically in chapters 13-15.

Following documents exist comparing cores to each other:

http://www.nxp.com/files/microcontrollers/doc/app_note/AN4802.pdf

Also following presentation could be useful:

http://www.nxp.com/files/training/doc/ftf/2014/FTF-AUT-F0345.pdf

In case specific details is needed to consult, please create new case and we’ll try to help you:

https://community.nxp.com/docs/DOC-329745

Re: powerpc core documentation

jamesmurray — Tue, 17 Oct 2017 16:50:43 GMT

I was looking for full information on the e200z425 core also. I've been able to be sure exactly what assembler opcodes it supports for floating point maths. Is there a definitive reference that tells me exactly which instructions are available?

I also found that the S32DS compiler is emitting opcodes that do not appear to be listed in the VLE documents.

Confused!

James

Re: powerpc core documentation

davidtosenovjan — Tue, 17 Oct 2017 19:05:51 GMT

Following 3 documents should cover all opcodes:

http://www.nxp.com/files/32bit/doc/ref_manual/EREF_RM.pdf
http://www.nxp.com/files/32bit/doc/ref_manual/VLEPEM.pdf
http://www.nxp.com/files/32bit/doc/ref_manual/SPEPEM.pdf

However they may be some unsupported instructions for specific core variants.